Hey all... nd have prob with 1gen touch

so i really thought im not too stupid with these things but this defect i just cant understand i hav 1gen ipod touch as well as 2g iphone and a3gs one eveythings fine with those hovewer something went wrong with my touch.. so... when i connect it to itunes or computer it actually does come up like it should i can synchronise nd do rest of the stuff and its charging aswell... but i cant power it on and display is not showing anything at all even the battery... anyone any ideas? thanx